Control method for turbocharged diesel engine aftertreatment system
    14.
    发明授权
    Control method for turbocharged diesel engine aftertreatment system 失效
    涡轮增压柴油机后处理系统控制方法

    公开(公告)号:US06568173B1

    公开(公告)日:2003-05-27

    申请号:US09631131

    申请日:2000-08-02

    IPC分类号: F01N504

    摘要: A method of controlling an exhaust gas aftertreatment system in a compression ignition engine having a power-assisted turbocharger coupled to a power source. The turbocharger includes a compressor in communication with an intake manifold and a turbine in communication with an exhaust manifold. The method comprises the steps of determining an operating mode of the exhaust gas aftertreatment system selected from the group consisting of a light off mode, regeneration mode, and storage mode. The method then determines a charge value associated with the power source, and engages the power source to the power-assisted turbocharger as a function of the charge value and the operating mode of the exhaust gas aftertreatment system. In one aspect of the invention, negative power is applied to the power-assisted turbocharger to increase the exhaust gas temperature to achieve particulate filter light-off. In another aspect, positive power is applied to the power-assisted turbocharger to reduce turbo-lag or engine pumping losses. In another aspect, negative or positive power is applied to the power-assisted turbocharger to maintain a desired oxygen flow through the particulate filter.

    摘要翻译: 一种在具有耦合到电源的功率辅助涡轮增压器的压缩点火式发动机中控制废气后处理系统的方法。 涡轮增压器包括与进气歧管连通的压缩机和与排气歧管连通的涡轮机。 该方法包括以下步骤:确定从关灯模式,再生模式和存储模式中选择的排气后处理系统的操作模式。 该方法然后确定与电源相关联的电荷值,并且根据废气后处理系统的电荷值和操作模式将电源接合到功率辅助涡轮增压器。 在本发明的一个方面,负功率被施加到动力辅助涡轮增压器以增加废气温度以实现微粒过滤器的关闭。 在另一方面,正功率被施加到功率辅助涡轮增压器以减少涡轮滞后或发动机泵送损失。 在另一方面,负功率或正功率被施加到动力辅助涡轮增压器以保持通过微粒过滤器的期望的氧气流。

    Method and system for purge cycle management of a lean NOx trap
    15.
    发明授权
    Method and system for purge cycle management of a lean NOx trap 失效
    贫NOx捕集器的净化循环管理方法和系统

    公开(公告)号:US06370868B1

    公开(公告)日:2002-04-16

    申请号:US09542784

    申请日:2000-04-04

    IPC分类号: F01N300

    摘要: Purging of a NOX trap is initiated if the estimated mass of NOX in the trap exceeds a NOX mass threshold value unless the estimated probability that the engine will be subjected to high load and high speed conditions exceed a probability threshold value, in which event the decision whether to initiate the purging of said trap is delayed for a predetermined time interval.

    摘要翻译: 如果捕集阱中NOX的估计质量超过NOX质量阈值,则排除NOX捕集阱,除非发动机将承受高负载和高速条件的估计概率超过概率阈值,在这种情况下,决定 是否启动所述陷阱的清除被延迟预定的时间间隔。

    Control of exhaust temperature in lean burn engines
    16.
    发明授权
    Control of exhaust temperature in lean burn engines 失效
    贫燃机排气温度控制

    公开(公告)号:US06314735B1

    公开(公告)日:2001-11-13

    申请号:US09511594

    申请日:2000-02-23

    IPC分类号: F02D2300

    摘要: A method (100) and system for actively controlling the temperature of engine (10) exhaust gas entering an aftertreatment device and thereby controlling undesirable emissions. Through control of the turbine blade position of a variable geometry turbocharger (16), the temperature of the exhaust gas entering the aftertreatment device is maintained within the operating temperature window for the device, and at the same time, achieves the fuel economy benefits associated with turbocharging.

    摘要翻译: 一种用于主动地控制进入后处理装置的发动机(10)排气的温度并由此控制不期望的排放的方法(100)和系统。 通过控制可变几何涡轮增压器(16)的涡轮叶片位置,进入后处理装置的废气的温度保持在装置的操作温度窗口内,并且同时实现与 涡轮增压。

    ASSISTED DIRECT START ENGINE CONTROL FOR ENHANCED LAUNCH PERFORMANCE
    20.
    发明申请
    ASSISTED DIRECT START ENGINE CONTROL FOR ENHANCED LAUNCH PERFORMANCE 有权
    辅助直接启动发动机控制,增强发动机性能

    公开(公告)号:US20110071746A1

    公开(公告)日:2011-03-24

    申请号:US12563203

    申请日:2009-09-21

    IPC分类号: F02D45/00

    摘要: A system and method for controlling an internal combustion engine include anticipating vehicle launch in response to vehicle position relative to a traffic stream and controlling automatic restart and shut down in response to an anticipated vehicle launch to prevent an automatic engine shut down or to initiate an automatic engine restart. Embodiments include determining vehicle position and traffic position using GPS coordinates. Automatic restart may be initiated in response to movement of a forward vehicle away from the vehicle or in response to a signal from a traffic control device, for example. Automatic shutdown may be inhibited in response to movement of a forward vehicle in cross traffic, in response to a turn indicator being active, or in response to wheel angle, for example.

    摘要翻译: 用于控制内燃机的系统和方法包括响应于相对于交通流的车辆位置来预测车辆发射,并响应于预期的车辆发射来控制自动重启和关闭,以防止自动发动机停机或启动自动 发动机重启。 实施例包括使用GPS坐标确定车辆位置和交通位置。 响应于前方车辆离开车辆的移动或者响应于来自交通控制装置的信号,可以启动自动重启。 例如,响应于转向指示器处于活动状态或响应于车轮角度,响应于交通业务中的前进车辆的运动可以禁止自动停机。